Pre-Algebra Examples

Solve for n 15-n/7=13
Step 1
Move all terms not containing to the right side of the equation.
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Step 1.1
Subtract from both sides of the equation.
Step 1.2
Subtract from .
Step 2
Multiply both sides of the equation by .
Step 3
Simplify both sides of the equation.
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Step 3.1
Simplify the left side.
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Step 3.1.1
Simplify .
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Step 3.1.1.1
Cancel the common factor of .
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Step 3.1.1.1.1
Move the leading negative in into the numerator.
Step 3.1.1.1.2
Factor out of .
Step 3.1.1.1.3
Cancel the common factor.
Step 3.1.1.1.4
Rewrite the expression.
Step 3.1.1.2
Multiply.
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Step 3.1.1.2.1
Multiply by .
Step 3.1.1.2.2
Multiply by .
Step 3.2
Simplify the right side.
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Step 3.2.1
Multiply by .